You can search in any of these databases to find articles on your topic. I've put them (more or less) in order with the "best" options at the top of the list - but that will vary by specific search.
Once you find an article you would like to access, full text may be available by clicking on the Find it button. The Find it button will let you know if the article is available in another database, if the library has a copy of the article in print, or help you request it via Interlibrary Loan (ILL).